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Carnivorous plants grow in nitrogen-deficient soils, so they trap insects to obtain nitrogen and other nutrients. Related Questions: Write the differences between: Name sources of variation. Give examples of artificial selection. What kind of gametes would be produced by organisms having the following genotypes? Two white sheep produce a black offspring. What must the parents’ … Read more
Crossing over occurs during meiosis, exchanging genetic material between homologous chromosomes, leading to new genetic combinations in offspring. Related Questions: Write the differences between: Name sources of variation. Give examples of artificial selection. What kind of gametes would be produced by organisms having the following genotypes? Two white sheep produce a black offspring. What must … Read more
A test cross is used to determine an organism’s genotype by crossing it with a homozygous recessive organism. It helps identify whether an individual is homozygous dominant or heterozygous. Related Questions: Write the differences between: Name sources of variation. Give examples of artificial selection. What kind of gametes would be produced by organisms having the … Read more
Males have only one *X chromosome*, so if it carries a defective gene, they express the disorder, unlike females, who have another X chromosome that may carry a normal gene. Related Questions: Write the differences between: Name sources of variation. Give examples of artificial selection. What kind of gametes would be produced by organisms having … Read more
Polygenic inheritance is when a trait is controlled by multiple genes. An example is human height. Related Questions: Write the differences between: Name sources of variation. Give examples of artificial selection. What kind of gametes would be produced by organisms having the following genotypes? Two white sheep produce a black offspring. What must the parents’ … Read more
Genotype refers to the genetic makeup of an organism, while phenotype is the observable physical or physiological traits. Related Questions: Write the differences between: Name sources of variation. Give examples of artificial selection. What kind of gametes would be produced by organisms having the following genotypes? Two white sheep produce a black offspring. What must … Read more
Heterozygous: Aa, Bb Homozygous: AA, ss Same phenotype: BB and Bb (if B is dominant) Related Questions: Write the differences between: Name sources of variation. Give examples of artificial selection. What kind of gametes would be produced by organisms having the following genotypes? Two white sheep produce a black offspring. What must the parents’ genotype … Read more
a. Which variety was more common when there was more air pollution? Give a reason as well. Dark-colored moths were more common due to industrial melanism, as they blended better with polluted, dark tree bark, avoiding predation. b. Which variety is more common in England nowadays? Give a reason as well. Light-colored moths are now … Read more
The parents must be heterozygous (Bb). The probability of a black offspring (bb) is 25%. Related Questions: Write the differences between: Name sources of variation. Give examples of artificial selection. What kind of gametes would be produced by organisms having the following genotypes? Name the structure through which the exchange of gases can take place … Read more
AaBB: AB, aB aaBB: aB, aB AAbb: Ab, Ab Related Questions: Write the differences between: Name sources of variation. Give examples of artificial selection. Two white sheep produce a black offspring. What must the parents’ genotype for colour be? What is the probability that the next offspring will be black? The diagram shows two … Read more